Frequency division multiplexed reference signals for multiple beams

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a capability to receive multiple reference signals via multiple beams using frequency division multiplexing during a single reference signal burst. The UE may receive the multiple reference signals during the single reference signal burst using frequency division multiplexing. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATION

This Patent Application claims priority to U.S. Provisional PatentApplication No. 62/706,749, filed on Sep. 8, 2020, entitled “FREQUENCYDIVISION MULTIPLEXED REFERENCE SIGNALS FOR MULTIPLE BEAMS,” and assignedto the assignee hereof. The disclosure of the prior Application isconsidered part of and is incorporated by reference in this PatentApplication.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques and apparatuses for frequency divisionmultiplexed reference signals for multiple beams.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless network may include a number of base stations (BSs) that cansupport communication for a number of user equipment (UEs). A UE maycommunicate with a BS via the downlink and uplink. “Downlink” (or“forward link”) refers to the communication link from the BS to the UE,and “uplink” (or “reverse link”) refers to the communication link fromthe UE to the BS. As will be described in more detail herein, a BS maybe referred to as a Node B, a gNB, an access point (AP), a radio head, atransmit receive point (TRP), a New Radio (NR) BS, a 5G Node B, or thelike.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. NR, which may also be referred to as5G, is a set of enhancements to the LTE mobile standard promulgated bythe 3GPP. NR is designed to better support mobile broadband Internetaccess by improving spectral efficiency, lowering costs, improvingservices, making use of new spectrum, and better integrating with otheropen standards using orthogonal frequency division multiplexing (OFDM)with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), using CP-OFDMand/or SC-FDM (e.g., also known as discrete Fourier transform spreadOFDM (DFT-s-OFDM)) on the uplink (UL), as well as supportingbeamforming, multiple-input multiple-output (MIMO) antenna technology,and carrier aggregation. As the demand for mobile broadband accesscontinues to increase, further improvements in LTE, NR, and other radioaccess technologies remain useful.

SUMMARY

In some aspects, a method of wireless communication performed by a userequipment (UE) includes transmitting an indication of a capability toreceive multiple reference signals via multiple beams using frequencydivision multiplexing during a single reference signal burst; andreceiving the multiple reference signals during the single referencesignal burst using frequency division multiplexing.

In some aspects, a method of wireless communication performed by a basestation includes receiving, from a UE, an indication of a capability toreceive multiple reference signals via multiple beams using frequencydivision multiplexing during a single reference signal burst; andtransmitting, to the UE, the multiple reference signals during thesingle reference signal burst using frequency division multiplexing.

In some aspects, a UE for wireless communication includes a memory; andone or more processors coupled to the memory, the one or more processorsconfigured to: transmit an indication of a capability to receivemultiple reference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst; and receive themultiple reference signals during the single reference signal burstusing frequency division multiplexing.

In some aspects, a base station for wireless communication includes amemory; and one or more processors coupled to the memory, the one ormore processors configured to: receive, from a UE, an indication of acapability to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst; and transmit, to the UE, the multiple reference signals duringthe single reference signal burst using frequency division multiplexing.

In some aspects, a non-transitory computer-readable medium storing a setof instructions for wireless communication includes one or moreinstructions that, when executed by one or more processors of a UE,cause the UE to: transmit an indication of a capability to receivemultiple reference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst; and receive themultiple reference signals during the single reference signal burstusing frequency division multiplexing.

In some aspects, a non-transitory computer-readable medium storing a setof instructions for wireless communication includes one or moreinstructions that, when executed by one or more processors of a basestation, cause the base station to: receive, from a UE, an indication ofa capability to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst; and transmit, to the UE, the multiple reference signals duringthe single reference signal burst using frequency division multiplexing.

In some aspects, an apparatus for wireless communication includes meansfor transmitting an indication of a capability to receive multiplereference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst; and means forreceiving the multiple reference signals during the single referencesignal burst using frequency division multiplexing.

In some aspects, an apparatus for wireless communication includes meansfor receiving, from a UE, an indication of a capability to receivemultiple reference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst; and means fortransmitting, to the UE, the multiple reference signals during thesingle reference signal burst using frequency division multiplexing.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, and/or processing system assubstantially described herein with reference to and as illustrated bythe drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

While aspects are described in the present disclosure by illustration tosome examples, those skilled in the art will understand that suchaspects may be implemented in many different arrangements and scenarios.Techniques described herein may be implemented using different platformtypes, devices, systems, shapes, sizes, and/or packaging arrangements.For example, some aspects may be implemented via integrated chipembodiments or other non-module-component based devices (e.g., end-userdevices, vehicles, communication devices, computing devices, industrialequipment, retail/purchasing devices, medical devices, or artificialintelligence-enabled devices). Aspects may be implemented in chip-levelcomponents, modular components, non-modular components, non-chip-levelcomponents, device-level components, or system-level components. Devicesincorporating described aspects and features may include additionalcomponents and features for implementation and practice of claimed anddescribed aspects. For example, transmission and reception of wirelesssignals may include a number of components for analog and digitalpurposes (e.g., hardware components including antennas, radio frequencychains, power amplifiers, modulators, buffers, processor(s),interleavers, adders, or summers). It is intended that aspects describedherein may be practiced in a wide variety of devices, components,systems, distributed arrangements, or end-user devices of varying size,shape, and constitution.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a diagram illustrating an example of a wireless network, inaccordance with the present disclosure.

FIG. 2 is a diagram illustrating an example of a base station incommunication with a user equipment (UE) in a wireless network, inaccordance with the present disclosure.

FIGS. 3, 4A, and 4B are diagrams illustrating examples of beammanagement procedures, in accordance with the present disclosure.

FIGS. 5 and 6A-6C are diagrams illustrating examples associated withfrequency division multiplexed reference signals for multiple beams, inaccordance with the present disclosure.

FIGS. 7 and 8 are diagrams illustrating example processes associatedwith frequency division multiplexed reference signals for multiplebeams, in accordance with the present disclosure.

FIGS. 9 and 10 are block diagrams of example apparatuses for wirelesscommunication, in accordance with the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein, one skilled in the art should appreciate that thescope of the disclosure is intended to cover any aspect of thedisclosure disclosed herein, whether implemented independently of orcombined with any other aspect of the disclosure. For example, anapparatus may be implemented or a method may be practiced using anynumber of the aspects set forth herein. In addition, the scope of thedisclosure is intended to cover such an apparatus or method which ispracticed using other structure, functionality, or structure andfunctionality in addition to or other than the various aspects of thedisclosure set forth herein. It should be understood that any aspect ofthe disclosure disclosed herein may be embodied by one or more elementsof a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It should be noted that while aspects may be described herein usingterminology commonly associated with a 5G or NR radio access technology(RAT), aspects of the present disclosure can be applied to other RATs,such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G).

FIG. 1 is a diagram illustrating an example of a wireless network 100,in accordance with the present disclosure. The wireless network 100 maybe or may include elements of a 5G (NR) network and/or an LTE network,among other examples. The wireless network 100 may include a number ofbase stations 110 (shown as BS 110 a, BS 110 b, BS 110 c, and BS 110 d)and other network entities. A base station (BS) is an entity thatcommunicates with user equipment (UEs) and may also be referred to as anNR BS, a Node B, a gNB, a 5G node B (NB), an access point, a transmitreceive point (TRP), or the like. Each BS may provide communicationcoverage for a particular geographic area. In 3GPP, the term “cell” canrefer to a coverage area of a BS and/or a BS subsystem serving thiscoverage area, depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). ABS for a macro cell may bereferred to as a macro BS. ABS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1, a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in thewireless network 100 through various types of backhaul interfaces, suchas a direct physical connection or a virtual network, using any suitabletransport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1, a relay BS 110 d may communicate with macro BS 110 a and a UE120 d in order to facilitate communication between BS 110 a and UE 120d. A relay BS may also be referred to as a relay station, a relay basestation, a relay, or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, such as macro BSs, pico BSs, femto BSs, relay BSs, orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, directly or indirectly, via a wireless or wirelinebackhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, or the like. A UE may be a cellular phone(e.g., a smart phone), a personal digital assistant (PDA), a wirelessmodem, a wireless communication device, a handheld device, a laptopcomputer, a cordless phone, a wireless local loop (WLL) station, atablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook,a medical device or equipment, biometric sensors/devices, wearabledevices (smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, and/or location tags, that may communicate with a basestation, another device (e.g., remote device), or some other entity. Awireless node may provide, for example, connectivity for or to a network(e.g., a wide area network such as Internet or a cellular network) via awired or wireless communication link. Some UEs may be consideredInternet-of-Things (IoT) devices, and/or may be implemented as NB-IoT(narrowband internet of things) devices. Some UEs may be considered aCustomer Premises Equipment (CPE). UE 120 may be included inside ahousing that houses components of UE 120, such as processor componentsand/or memory components. In some aspects, the processor components andthe memory components may be coupled together. For example, theprocessor components (e.g., one or more processors) and the memorycomponents (e.g., a memory) may be operatively coupled, communicativelycoupled, electronically coupled, and/or electrically coupled.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, or the like. A frequency may alsobe referred to as a carrier, a frequency channel, or the like. Eachfrequency may support a single RAT in a given geographic area in orderto avoid interference between wireless networks of different RATs. Insome cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol or avehicle-to-infrastructure (V2I) protocol), and/or a mesh network. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

Devices of wireless network 100 may communicate using theelectromagnetic spectrum, which may be subdivided based on frequency orwavelength into various classes, bands, channels, or the like. Forexample, devices of wireless network 100 may communicate using anoperating band having a first frequency range (FR1), which may span from410 MHz to 7.125 GHz, and/or may communicate using an operating bandhaving a second frequency range (FR2), which may span from 24.25 GHz to52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred toas mid-band frequencies. Although a portion of FR1 is greater than 6GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 isoften referred to as a “millimeter wave” band despite being differentfrom the extremely high frequency (EHF) band (30 GHz-300 GHz) which isidentified by the International Telecommunications Union (ITU) as a“millimeter wave” band. Thus, unless specifically stated otherwise, itshould be understood that the term “sub-6 GHz” or the like, if usedherein, may broadly represent frequencies less than 6 GHz, frequencieswithin FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz).Similarly, unless specifically stated otherwise, it should be understoodthat the term “millimeter wave” or the like, if used herein, may broadlyrepresent frequencies within the EHF band, frequencies within FR2,and/or mid-band frequencies (e.g., less than 24.25 GHz). It iscontemplated that the frequencies included in FR1 and FR2 may bemodified, and techniques described herein are applicable to thosemodified frequency ranges.

As indicated above, FIG. 1 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 1.

FIG. 2 is a diagram illustrating an example 200 of a base station 110 incommunication with a UE 120 in a wireless network 100, in accordancewith the present disclosure. Base station 110 may be equipped with Tantennas 234 a through 234 t, and UE 120 may be equipped with R antennas252 a through 252 r, where in general T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI)) and control information (e.g.,CQI requests, grants, and/or upper layer signaling) and provide overheadsymbols and control symbols. Transmit processor 220 may also generatereference symbols for reference signals (e.g., a cell-specific referencesignal (CRS) or a demodulation reference signal (DMRS)) andsynchronization signals (e.g., a primary synchronization signal (PSS) ora secondary synchronization signal (SSS)). A transmit (TX)multiple-input multiple-output (MIMO) processor 230 may perform spatialprocessing (e.g., precoding) on the data symbols, the control symbols,the overhead symbols, and/or the reference symbols, if applicable, andmay provide T output symbol streams to T modulators (MODs) 232 a through232 t. Each modulator 232 may process a respective output symbol stream(e.g., for OFDM) to obtain an output sample stream. Each modulator 232may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM) to obtain received symbols. A MIMO detector 256 may obtainreceived symbols from all R demodulators 254 a through 254 r, performMIMO detection on the received symbols if applicable, and providedetected symbols. A receive processor 258 may process (e.g., demodulateand decode) the detected symbols, provide decoded data for UE 120 to adata sink 260, and provide decoded control information and systeminformation to a controller/processor 280. The term“controller/processor” may refer to one or more controllers, one or moreprocessors, or a combination thereof. A channel processor may determinea reference signal received power (RSRP) parameter, a received signalstrength indicator (RSSI) parameter, a reference signal received quality(RSRQ) parameter, and/or a CQI parameter, among other examples. In someaspects, one or more components of UE 120 may be included in a housing.

Network controller 130 may include communication unit 294,controller/processor 290, and memory 292. Network controller 130 mayinclude, for example, one or more devices in a core network. Networkcontroller 130 may communicate with base station 110 via communicationunit 294.

Antennas (e.g., antennas 234 a through 234 t and/or antennas 252 athrough 252 r) may include, or may be included within, one or moreantenna panels, antenna groups, sets of antenna elements, and/or antennaarrays, among other examples. An antenna panel, an antenna group, a setof antenna elements, and/or an antenna array may include one or moreantenna elements. An antenna panel, an antenna group, a set of antennaelements, and/or an antenna array may include a set of coplanar antennaelements and/or a set of non-coplanar antenna elements. An antennapanel, an antenna group, a set of antenna elements, and/or an antennaarray may include antenna elements within a single housing and/orantenna elements within multiple housings. An antenna panel, an antennagroup, a set of antenna elements, and/or an antenna array may includeone or more antenna elements coupled to one or more transmission and/orreception components, such as one or more components of FIG. 2.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports that include RSRP, RSSI, RSRQ, and/or CQI) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In someaspects, a modulator and a demodulator (e.g., MOD/DEMOD 254) of the UE120 may be included in a modem of the UE 120. In some aspects, the UE120 includes a transceiver. The transceiver may include any combinationof antenna(s) 252, modulators and/or demodulators 254, MIMO detector256, receive processor 258, transmit processor 264, and/or TX MIMOprocessor 266. The transceiver may be used by a processor (e.g.,controller/processor 280) and memory 282 to perform aspects of any ofthe methods described herein (for example, as described with referenceto FIGS. 5-8).

At base station 110, the uplink signals from UE 120 and other UEs may bereceived by antennas 234, processed by demodulators 232, detected by aMIMO detector 236 if applicable, and further processed by a receiveprocessor 238 to obtain decoded data and control information sent by UE120. Receive processor 238 may provide the decoded data to a data sink239 and the decoded control information to controller/processor 240.Base station 110 may include communication unit 244 and communicate tonetwork controller 130 via communication unit 244. Base station 110 mayinclude a scheduler 246 to schedule UEs 120 for downlink and/or uplinkcommunications. In some aspects, a modulator and a demodulator (e.g.,MOD/DEMOD 232) of the base station 110 may be included in a modem of thebase station 110. In some aspects, the base station 110 includes atransceiver. The transceiver may include any combination of antenna(s)234, modulators and/or demodulators 232, MIMO detector 236, receiveprocessor 238, transmit processor 220, and/or TX MIMO processor 230. Thetransceiver may be used by a processor (e.g., controller/processor 240)and memory 242 to perform aspects of any of the methods described herein(for example, as described with reference to FIGS. 5-8).

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with frequency division multiplexed referencesignals for multiple beams, as described in more detail elsewhereherein. For example, controller/processor 240 of base station 110,controller/processor 280 of UE 120, and/or any other component(s) ofFIG. 2 may perform or direct operations of, for example, process 700 ofFIG. 7, process 800 of FIG. 8, and/or other processes as describedherein. Memories 242 and 282 may store data and program codes for basestation 110 and UE 120, respectively. In some aspects, memory 242 and/ormemory 282 may include a non-transitory computer-readable medium storingone or more instructions (e.g., code and/or program code) for wirelesscommunication. For example, the one or more instructions, when executed(e.g., directly, or after compiling, converting, and/or interpreting) byone or more processors of the base station 110 and/or the UE 120, maycause the one or more processors, the UE 120, and/or the base station110 to perform or direct operations of, for example, process 700 of FIG.7, process 800 of FIG. 8, and/or other processes as described herein. Insome aspects, executing instructions may include running theinstructions, converting the instructions, compiling the instructions,and/or interpreting the instructions, among other examples.

In some aspects, the UE includes means for transmitting an indication ofa capability to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst; and/or means for receiving the multiple reference signals duringthe single reference signal burst using frequency division multiplexing.The means for the UE to perform operations described herein may include,for example, antenna 252, demodulator 254, MIMO detector 256, receiveprocessor 258, transmit processor 264, TX MIMO processor 266, modulator254, controller/processor 280, and/or memory 282.

In some aspects, the UE includes means for receiving an indication ofresource locations associated with the multiple reference signals.

In some aspects, the UE includes means for receiving radio resourcecontrol signaling that includes the indication of the resource locationsassociated with the multiple reference signals; or means for receivingconfiguration information that associates the resource locations withcell identifications or synchronization signal block indexes.

In some aspects, the UE includes means for measuring the multiplereference signals; and/or means for transmitting a report ofmeasurements of the multiple reference signals.

In some aspects, the UE includes means for performing a portion of abase station beam selection procedure.

In some aspects, the UE includes means for receiving multiple additionalreference signals during an additional single reference signal burstusing frequency division multiplexing.

In some aspects, the base station includes means for receiving, from aUE, an indication of a capability to receive multiple reference signalsvia multiple beams using frequency division multiplexing during a singlereference signal burst; and/or means for transmitting, to the UE, themultiple reference signals during the single reference signal burstusing frequency division multiplexing. The means for the base station toperform operations described herein may include, for example, transmitprocessor 220, TX MIMO processor 230, modulator 232, antenna 234,demodulator 232, MIMO detector 236, receive processor 238,controller/processor 240, memory 242, and/or scheduler 246.

In some aspects, the base station includes means for transmitting anindication of resource locations associated with the multiple referencesignals.

In some aspects, the base station includes means for transmitting radioresource control signaling that includes the indication of the resourcelocations associated with the multiple reference signals; or means fortransmitting configuration information that associates the resourcelocations with cell identifications or synchronization signal blockindexes.

In some aspects, the base station includes means for transmitting theradio resource control signaling via a non-standalone network or as partof a handover operation.

In some aspects, the base station includes means for receiving a reportof measurements of the multiple reference signals.

In some aspects, the base station includes means for selecting a basestation beam based at least in part on the report of measurements.

In some aspects, the base station includes means for transmittingmultiple additional reference signals during an additional singlereference signal burst using frequency division multiplexing. Whileblocks in FIG. 2 are illustrated as distinct components, the functionsdescribed above with respect to the blocks may be implemented in asingle hardware, software, or combination component or in variouscombinations of components. For example, the functions described withrespect to the transmit processor 264, the receive processor 258, and/orthe TX MIMO processor 266 may be performed by or under the control ofcontroller/processor 280.

As indicated above, FIG. 2 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 2.

FIG. 3 is a diagram illustrating examples 300, 310, and 320 of channelstate information reference signal (CSI-RS) beam management procedures,in accordance with the present disclosure. As shown in FIG. 3, examples300, 310, and 320 include a UE 120 in communication with a base station110 in a wireless network (e.g., wireless network 100). However, thedevices shown in FIG. 3 are provided as examples, and the wirelessnetwork may support communication and beam management between otherdevices (e.g., between a UE 120 and a base station 110 or TRP, between amobile termination node and a control node, between an integrated accessand backhaul (IAB) child node and an IAB parent node, between ascheduled node and a scheduling node, and/or the like). In some aspects,the UE 120 and the base station 110 may be in a connected state (e.g., aradio resource control (RRC) connected state and/or the like).

As shown in FIG. 3, example 300 may include a base station 110 and a UE120 communicating to perform beam management using CSI-RSs,synchronization signal blocks (SSBs), and/or another type of referencesignal. Example 300 depicts a first beam management procedure (e.g., P1beam management). The first beam management procedure may be referred toas a beam selection procedure, an initial beam acquisition procedure, abeam sweeping procedure, a cell search procedure, a beam searchprocedure, and/or the like. As shown in FIG. 3 and example 300, CSI-RSsmay be configured to be transmitted from the base station 110 to the UE120. The CSI-RSs may be configured to be periodic (e.g., using RRCsignaling and/or the like), semi-persistent (e.g., using media accesscontrol (MAC) control element (MAC-CE) signaling and/or the like),and/or aperiodic (e.g., using downlink control information (DCI) and/orthe like).

The first beam management procedure may include the base station 110performing beam sweeping over multiple transmit (Tx) beams. The basestation 110 may transmit a CSI-RS using each transmit beam for beammanagement. To enable the UE 120 to perform receive (Rx) beam sweeping,the base station may use a transmit beam to transmit (e.g., withrepetitions) each CSI-RS at multiple times within the same RS resourceset so that the UE 120 can sweep through receive beams in multipletransmission instances. For example, if the base station 110 has a setof N transmit beams and the UE 120 has a set of M receive beams, theCSI-RS may be transmitted on each of the N transmit beams M times sothat the UE 120 may receive M instances of the CSI-RS per transmit beam.In other words, for each transmit beam of the base station 110, the UE120 may perform beam sweeping through the receive beams of the UE 120.As a result, the first beam management procedure may enable the UE 120to measure a CSI-RS on different transmit beams using different receivebeams to support selection of base station 110 transmit beams/UE 120receive beam(s) beam pair(s). The UE 120 may report the measurements tothe base station 110 to enable the base station 110 to select one ormore beam pair(s) for communication between the base station 110 and theUE 120. While example 300 has been described in connection with CSI-RSs,the first beam management process may also use SSBs for beam managementin a similar manner as described above.

As shown in FIG. 3, example 310 may include a base station 110 and a UE120 communicating to perform beam management using CSI-RSs and/or SSBs.Example 310 depicts a second beam management procedure (e.g., P2 beammanagement). The second beam management procedure may be referred to asa beam refinement procedure, a base station beam refinement procedure, aTRP beam refinement procedure, a transmit beam refinement procedure,and/or the like. As shown in FIG. 3 and example 310, CSI-RSs may beconfigured to be transmitted from the base station 110 to the UE 120.The CSI-RSs may be configured to be aperiodic (e.g., using DCI and/orthe like). The second beam management procedure may include the basestation 110 performing beam sweeping over one or more transmit beams.The one or more transmit beams may be a subset of all transmit beamsassociated with the base station 110 (e.g., determined based at least inpart on measurements reported by the UE 120 in connection with the firstbeam management procedure). The base station 110 may transmit a CSI-RSusing each transmit beam of the one or more transmit beams for beammanagement. The UE 120 may measure each CSI-RS using a single (e.g., asame) receive beam (e.g., determined based at least in part onmeasurements performed in connection with the first beam managementprocedure). The second beam management procedure may enable the basestation 110 to select a best transmit beam based at least in part onmeasurements of the CSI-RSs (e.g., measured by the UE 120 using thesingle receive beam) reported by the UE 120.

As shown in FIG. 3, example 320 depicts a third beam managementprocedure (e.g., P3 beam management). The third beam managementprocedure may be referred to as a beam refinement procedure, a UE beamrefinement procedure, a receive beam refinement procedure, and/or thelike. As shown in FIG. 3 and example 320, one or more CSI-RSs may beconfigured to be transmitted from the base station 110 to the UE 120.The CSI-RSs may be configured to be aperiodic (e.g., using DCI and/orthe like). The third beam management process may include the basestation 110 transmitting the one or more CSI-RSs using a single transmitbeam (e.g., determined based at least in part on measurements reportedby the UE 120 in connection with the first beam management procedureand/or the second beam management procedure). To enable the UE 120 toperform receive beam sweeping, the base station may use a transmit beamto transmit (e.g., with repetitions) CSI-RS at multiple times within thesame reference signal (RS) resource set so that UE 120 can sweep throughone or more receive beams in multiple transmission instances. The one ormore receive beams may be a subset of all receive beams associated withthe UE 120 (e.g., determined based at least in part on measurementsperformed in connection with the first beam management procedure and/orthe second beam management procedure). The third beam managementprocedure may enable the base station 110 and/or the UE 120 to select abest receive beam based at least in part on reported measurementsreceived from the UE 120 (e.g., of the CSI-RS of the transmit beam usingthe one or more receive beams).

As indicated above, FIG. 3 is provided as an example of beam managementprocedures. Other examples of beam management procedures may differ fromwhat is described with respect to FIG. 3. For example, the UE 120 andthe base station 110 may perform the third beam management procedurebefore performing the second beam management procedure, the UE 120 andthe base station 110 may perform a similar beam management procedure toselect a UE transmit beam, and/or the like.

FIGS. 4A and 4B are diagrams illustrating examples 400, 450 of Beammanagement procedures, in accordance with the present disclosure.Examples 400, 450 illustrate schemes for transmitting reference signals(e.g., SSBs) from a first device (e.g., a base station 110) to a seconddevice (e.g., a UE 120). Examples 400, 450 may be used in a beammanagement procedure, such as a P1 beam management procedure.

As shown in FIG. 4A, the first device may transmit reference signalswith a periodicity 405. In other words, a reference signal transmissionoccasion for transmitting multiple reference signals for a P1 beammanagement procedure may have the periodicity 405 (e.g., 20milliseconds).

During a reference signal transmission occasion, the first device maytransmit multiple reference signals 410. For example, the first devicemay transmit SSBs that each include a PSS, a first physical broadcastchannel (PBCH), an SSS, and/or a second PBCH. The first device maytransmit the multiple reference signals 410 using different beams havingSSB indexes 415.

As shown in FIG. 4B, the first device may transmit multiple referencesignals (e.g., SSBs) via a first cell 455. As further shown in FIG. 4B,the first device or an additional device may transmit multiple referencesignals via a second cell 460. The multiple reference signals of thefirst cell 455 may be located at a same frequency or within a samefrequency range as the multiple reference signals of the second cell460.

In some wireless networks, the first device and/or the additional devicemay transmit, for example, 64 SSBs in a reference signal transmissionoccasion. The reference signal transmission occasion may include asynchronization signal burst set with a periodicity of 20 millisecondsto 160 milliseconds and may have a duration of 5 milliseconds, forexample.

Based at least in part on the duration of the reference signaltransmission occasion being sufficient to transmit each of the multiplereference signals with time division multiplexing, the reference signaltransmission occasion may consume network resource and lower spectralefficiency of communications between the first device and the seconddevice. For example, in some wireless networks, symbols designated forbeam management may not be useable for data transmissions. Based atleast in part on the multiple reference signals of the first cell 455being located at a same frequency or within a same frequency range asthe multiple reference signals of the second cell 460, the referencesignals may collide (e.g., cause inter-cell interference) and degradeperformance of the beam management procedure, which may consumecomputing, communication, network, and/or power resources to detect andcorrect.

As indicated above, FIGS. 4A and 4B are provided as examples. Otherexamples may differ from what is described with regard to FIGS. 4A and4B.

In some wireless networks, some wireless communication devices (e.g.,UEs 120 and/or base stations 110) may be configured with a capability toperform multiple beamforming operations during a same symbol. In otherwords, some wireless communication devices transmit and/or receivecommunications using multiple beams during a same symbol.

In some wireless networks, such as those that operate in thesub-terahertz (THz) frequency range, communication channels may haverelatively high throughputs and relatively high power consumption. Toconserve power resources, wireless communication devices may communicateusing short bursts instead of continuous transmissions and/orreceptions.

In some aspects described herein, based at least in part on capabilityof a UE, a base station may transmit multiple reference signals viamultiple beams using frequency division multiplexing during a singlereference signal burst. Based at least in part on the base stationtransmitting multiple reference signals via multiple beams usingfrequency division multiplexing during a single reference signal burst,a duration of a reference signal transmission occasion may be reduced(e.g., to about 4 symbols). This may reduce a consumption of networkresources (e.g., by reducing overhead) and increase spectral efficiencyfor communications between the base station and the UE. Additionally, oralternatively, a periodicity of the reference signal transmissionoccasion may be reduced, based at least in part on the duration beingreduced, to facilitate more frequent beam management procedures. Thismay improve signal strength metrics (e.g., RSRP, RSRQ, and/or signal tointerference plus noise ratio (SINR)), facilitate increased MCS forcommunications, and/or improved spectral efficiency. Additionally, oralternatively, different cells may carry reference signals atfrequencies that are frequency division multiplexed to avoid collisions.

FIG. 5 is a diagram illustrating an example 500 associated withfrequency division multiplexed reference signals for multiple beams, inaccordance with the present disclosure. As shown in FIG. 5, a UE (e.g.,UE 120) may communicate with a base station (e.g., base station 110).The UE and the base station may be part of a wireless network (e.g.,wireless network 100). In some aspects, the UE and the base station mayperform a beam management procedure.

As shown by reference number 505, the base station may transmit, and theUE may receive, configuration information. In some aspects, the UE mayreceive configuration information from another device (e.g., fromanother base station and/or another UE) and/or a communication standard,among other examples. In some aspects, the UE may receive theconfiguration information via one or more of RRC signaling, MACsignaling (e.g., MAC-CEs), and/or the like. In some aspects, theconfiguration information may include an indication of one or moreconfiguration parameters (e.g., already known to the UE) for selectionby the UE, explicit configuration information for the UE to use toconfigure the UE, and/or the like.

In some aspects, the configuration information may indicate that the UEis to provide an indication of a capability of the UE to beamform usingmultiple beams during a single reference signal burst (e.g.,simultaneously). In other words, the configuration information mayindicate that the UE is to provide an indication of a capability of theUE to receive multiple reference signals via multiple beams usingfrequency division multiplexing during a single reference signal burst.In some aspects, the configuration information may indicate that thebase station may transmit multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst.

In some aspects, the configuration information may indicate that thebase station is to provide an indication of whether transmission ofmultiple reference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst is enabled. In someaspects, the configuration information may indicate that the UE is to beconfigured to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst for a single procedure (e.g., a P1 beam management procedure), aspecified number of procedures, a set of procedures associated with aconfigured grant, procedures within a specified time period, and/or thelike.

As shown by reference number 510, the UE may configure the UE forcommunicating with the base station. In some aspects, the UE mayconfigure the UE based at least in part on the configurationinformation. In some aspects, the UE may be configured to perform one ormore operations described herein.

As shown by reference number 515, the UE may transmit, and the basestation may receive, an indication of a capability of the UE to receivemultiple RSs via multiple beams using frequency division multiplexing(FDM) during a single RS burst. In some aspects, the UE may transmit theindication via RRC signaling, one or more MAC CEs, a physical uplinkcontrol channel (PUCCH) message, and/or the like. In some aspects, themultiple reference signals may include multiple SSBs. In some aspects,the indication of the capability of the UE to receive multiple referencesignals via multiple beams using frequency division multiplexing duringa single RS burst may indicate such capability for a beam managementprocedure (e.g., a P1 beam management procedure).

As shown by reference number 520, the UE may determine to request use ofmultiple reference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst. In some aspects,the UE may determine to request use of multiple reference signals viamultiple beams using frequency division multiplexing during a singlereference signal burst based at least in part on one or more metrics,such as an amount of data buffered for uplink transmission or downlinktransmission that satisfies a threshold, a size of a resource grantassociated with one or more uplink transmissions or downlinktransmissions (e.g., compared with the amount of data buffered fortransmission), and/or a power metric of the UE, among other examples. Insome aspects, the UE may determine to request use of multiple referencesignals via multiple beams using frequency division multiplexing duringa single reference signal burst based at least in part on historicalmetrics, current metrics, predicted metrics, and/or the like.

As shown by reference number 525, the UE may transmit, and the basestation may receive, a request to receive multiple reference signals viamultiple beams using frequency division multiplexing during a singlereference signal burst. In some aspects, the UE may transmit the requestvia a physical uplink shared channel (PUSCH) transmission. In someaspects, the request may include a single bit indicator of whether usingfrequency division multiplexing during a single reference signal burstis requested for a single procedure (e.g., a P1 management procedure), aspecified number of procedures, a set of procedures associated with aconfigured grant, procedures within a specified time period, and/or thelike. In some aspects, the request may explicitly or implicitly indicatethe capability of the UE to receive multiple reference signals viamultiple beams using frequency division multiplexing during a singlereference signal burst. For example, by transmitting the request, the UEmay implicitly indicate that the UE is capable of receiving multiplereference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst.

In some aspects, the request may apply to a single procedure (e.g., a P1beam management procedure), a specified number of procedures, a set ofprocedures associated with a configured grant, procedures within aspecified time period, and/or the like based at least in part on aconfiguration (e.g., associated with the configuration information).

As shown by reference number 530, the base station may determine whetherto transmit multiple RSs via multiple beams using frequency divisionmultiplexing during a single RS burst. For example, the base station maydetermine whether to comply with a request from the UE to transmitmultiple RSs via multiple beams using frequency division multiplexingduring a single RS burst; the base station may determine, independentlyfrom a request from the UE, whether to transmit multiple RSs viamultiple beams using frequency division multiplexing during a single RSburst; and/or the like. In some aspects, the base station may determineto transmit multiple RSs via multiple beams using frequency divisionmultiplexing during a single RS burst based at least in part on theindication of the capability of the UE.

In some aspects, the base station may determine to transmit the multipleRSs via the single RS burst (a first RS burst) and to transmit multipleadditional reference signals during an additional single RS burst (asecond RS burst) using frequency division multiplexing. In some aspects,the base station may select RSs for transmission during the first RSburst and for the second RS burst based at least in part on spatialseparation of the RSs. For example, the base station may select a firstset of RSs (that includes at least one RS that is not included in themultiple additional reference signals) for transmission during the firstRS burst and may select a second set of RSs (that includes at least oneRS that is not included in the multiple reference signals) fortransmission during the second RS burst based at least in part onoptimizing spatial separation during the first RS burst and the secondRS burst.

In some aspects, the base station may determine to comply, or to notcomply, with a request from the UE based at least in part on one or moremetrics, such as an amount of buffered data for a downlink transmission,a size of a resource grant of an associated transmission (e.g., to whichthe request applies), an RSRP associated with the UE, movement of theUE, MCS for upcoming communications, a predicted change of conditionsfor SINR, and/or the like.

In some aspects, the base station may determine, independently from arequest from the UE, to transmit multiple RSs via multiple beams usingfrequency division multiplexing during a single RS burst based at leastin part on one or more metrics, such as a network load associated withthe base station, an amount of data buffered for uplink transmission ordownlink transmission that satisfies a threshold, a size of a resourcegrant associated with one or more uplink transmissions or downlinktransmissions (e.g., compared with the amount of data buffered fortransmission), an RSRP associated with the UE satisfying a threshold, anSINR that satisfies a threshold, a capability of the UE to receivemultiple RSs via multiple beams using frequency division multiplexingduring single RS bursts, and/or the like. In some aspects, the basestation may determine whether to transmit multiple RSs via multiplebeams using frequency division multiplexing during a single RS burstbased at least in part on historical metrics, current metrics, predictedmetrics, and/or the like.

As shown by reference number 535, the base station may transmit, and theUE may receive, an indication of resource locations associated withmultiple reference signals. The indication of resource locations mayimplicitly or explicitly indicate that the base station is configured totransmit multiple RSs via multiple beams using frequency divisionmultiplexing during a single RS burst. In some aspects, the base stationmay transmit the indication of the resource locations via RRC signaling,DCI, and/or one or more MAC CEs that include the indication. In someaspects, the base station may transmit the indication of the resourcelocations via RRC signaling, DCI, and/or one or more MAC CEs thatassociate (e.g., indicate an association) the resource locations withcell identifications, and/or SSB indexes, among other examples.

The UE may receive the RRC signaling as part of a non-standalone networkcommunication. For example, the UE may receive the RRC signaling via afirst connection (e.g., using a first radio access technology) and theRRC signaling may indicate resource locations of multiple referencesignals to be received via a second connection (e.g., using a secondradio access technology). Additionally, or alternatively, the UE mayreceive the RRC signaling as part of a handover operation. For example,the UE may receive the RRC signaling from a source cell, and the RRCsignaling may indicate resource locations of multiple reference signalsto be received via one or more neighbor cells and/or target cells.

In some aspects, the resource locations may be based at least in part ona working band associated with the multiple reference signals, abandwidth part associated with the multiple reference signals, and/or ageographical location of the UE, among other examples. In some aspects,the resource locations may be indicated within a communication protocoland/or may be otherwise predefined. In some aspects, the UE may obtain alocation of a first reference signal (e.g., an SSB), synchronize basedat least in part on the first reference signal, and obtain a location ofa second reference signal (e.g., an additional SSB) based at least inpart on obtaining the location of the first SSB and/or synchronizingbased at least in part on the first reference signal.

In some aspects, the indication may apply to a single procedure, aspecified number of procedures, a set of procedures associated with aconfigured grant, procedures within a specified time period, and/or thelike.

As shown by reference number 540, the base station may transmit, and theUE may receive, the multiple reference signals during a single referencesignal burst using frequency division multiplexing. In some aspects, thebase station may transmit the multiple reference signals as part of abeam management process (e.g., a P1 beam management procedure). In someaspects, the single reference signal burst may include a burst receivedover fewer than all symbols of a slot, fewer than half of symbols of aslot, and/or four or fewer symbols, among other examples. In someaspects, the burst may include a burst received over 8 or fewer symbols,12 or fewer symbols, or 16 or fewer symbols, among other examples.

In some aspects, the base station may transmit the multiple referencesignals with each reference signal located at a different frequency. Insome aspects, the base station may transmit the multiple referencesignals with some reference signals located at a same or overlappingfrequency. For example, a first reference signal and a second referencesignal may be located at a same frequency based at least in part on thefirst reference signal being carried on a first beam with a thresholdamount of spatial separation from a second beam that carries the secondreference signal.

In some aspects, the UE may receive the multiple RSs via the single RSburst (a first RS burst) and may receive multiple additional referencesignals during an additional single RS burst (a second RS burst) usingfrequency division multiplexing. In some aspects, UE may receive themultiple reference signals during the single reference signal burstbased at least in part on spatial separation of the multiple referencesignals, and/or the UE may receive the multiple additional referencesignals during the additional single reference signal burst based atleast in part on spatial separation of the multiple additional referencesignals. In some aspects, the multiple reference signals include atleast one reference signal that is not included in the multipleadditional reference signals, and/or the multiple additional referencesignals include at least one reference signal that is not included inthe multiple reference signals.

As shown by reference number 545, the UE may measure the multiplereference signals. In some aspects, the UE may determine one or morereference signals and/or one or more beams associated with a highest setof reference signal metrics (e.g., SINR, RSRP, and/or RSRQ, among otherexamples).

As shown by reference number 550, the UE may transmit a report ofmeasurements of the multiple reference signals to the base station. Insome aspects, the UE may report the measurements to the base station toenable the base station to select one or more beam pair(s) forcommunication between the base station and the UE.

Based at least in part on the base station transmitting multiplereference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst, a duration of areference signal transmission occasion may be reduced (e.g., to about 4symbols). This may reduce a consumption of network resources (e.g., byreducing overhead) and increase spectral efficiency for communicationsbetween the base station and the UE. Additionally, or alternatively, aperiodicity of the reference signal transmission occasion may bereduced, based at least in part on the duration being reduced, tofacilitate more frequent beam management procedures. This may improvesignal strength metrics (e.g., RSRP, RSRQ, and/or SINR), facilitateincreased MCS for communications, and/or improved spectral efficiency.Additionally, or alternatively, different cells may carry referencesignals at frequencies that are frequency division multiplexed to avoidcollisions.

As indicated above, FIG. 5 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 5.

FIGS. 6A-6C are diagrams illustrating examples 600, 610, and 630associated with frequency division multiplexed reference signals formultiple beams, in accordance with the present disclosure. Examples 600,610 illustrate schemes for transmitting reference signals (e.g., SSBs)from a first device (e.g., a base station 110) to a second device (e.g.,a UE 120). Examples 600, 610 may be used in a beam management procedure,such as a P1 beam management procedure.

As shown in FIG. 6A, the first device may transmit an SSB burst 605 thatincludes frequency division multiplexed SSBs. In some aspects, the firstdevice may transmit SSBs that each include a PSS, a first PBCH, an SSS,and/or a second PBCH. The first device may transmit the multiplereference signals using different beams having SSB indexes.

As shown by example 600, the first device may transmit the SSBs atdifferent frequencies during the SSB burst 605. In some aspects, thebase station may transmit the SSBs using adjacent tones or resourceblocks, among other examples. In some aspects, the base station maytransmit the SSBs with gaps in the frequency domain between SSBs.

As shown in FIG. 6B, and by example 610, the second device may receivean SSB burst 615 that includes a first set of SSBs via first cell SSBresources 620 and may receive a second set of SSBs via second cell SSBresources 625. In some aspects, a first cell and a second cell may beconfigured to carry SSBs on different frequencies. In some aspects thefirst device may transmit the first set of SSBs, and an additionaldevice may transmit the second set of SSBs.

In some aspects, the first cell SSB resources 620 may occupy acontinuous frequency range. In some aspects, the first cell SSBresources 620 may be interleaved with the second cell SSB resources 625.

As shown in FIG. 6C, and by example 630, the second device may receivean SSB burst 635 that includes multiple SSBs (e.g., identified with SSBindexes 0-3) and may receive an SSB burst 640 that includes multipleSSBs (e.g., identified with SSB indexes 4-8). In some aspects, a numberof SSBs multiplexed into a single burst may impact coverage of a cell.For example, an output power of a transmitter may be divided amongmultiple beams. In some aspects, the SSB burst 635 and the SSB burst 640may be temporally separated based on time resources allocated to SSBoccasions. For example, the SSB burst 635 may be temporally separatedfrom the SSB burst 640 by a number of slots, subframes, or frames of acommunication protocol used to communicate between the first device andthe second device. In some aspects, the SSB burst 635 may be temporallyseparated from the SSB burst 640 according to a cell-specificperiodicity of SSBs (e.g., as described in connection with FIG. 4B). Insome aspects, the SSB burst 635 may be temporally separated from the SSBburst 640 by an amount that is cell-specific, device-specific, orconfiguration-specific (e.g., applied to devices that are configured toreceive multiple SSBs in bursts).

As indicated above, FIGS. 6A-6C are provided as examples. Other examplesmay differ from what is described with regard to FIGS. 6A-6C.

FIG. 7 is a diagram illustrating an example process 700 performed, forexample, by a UE, in accordance with the present disclosure. Exampleprocess 700 is an example where the UE (e.g., UE 120) performsoperations associated with frequency division multiplexed referencesignals for multiple beams.

As shown in FIG. 7, in some aspects, process 700 may includetransmitting an indication of a capability to receive multiple referencesignals via multiple beams using frequency division multiplexing duringa single reference signal burst (block 710). For example, the UE (e.g.,using transmission component 904, depicted in FIG. 9) may transmit anindication of a capability to receive multiple reference signals viamultiple beams using frequency division multiplexing during a singlereference signal burst, as described above.

As further shown in FIG. 7, in some aspects, process 700 may includereceiving the multiple reference signals during the single referencesignal burst using frequency division multiplexing (block 720). Forexample, the UE (e.g., using reception component 902, depicted in FIG.9) may receive the multiple reference signals during the singlereference signal burst using frequency division multiplexing, asdescribed above.

Process 700 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, process 700 includes receiving an indication ofresource locations associated with the multiple reference signals.

In a second aspect, alone or in combination with the first aspect,receiving the indication of the resource locations associated with themultiple reference signals includes one or more of receiving radioresource control signaling that includes the indication of the resourcelocations associated with the multiple reference signals, or receivingconfiguration information that associates the resource locations withcell identifications or synchronization signal block indexes.

In a third aspect, alone or in combination with one or more of the firstand second aspects, receiving the radio resource control signaling thatincludes the indication of the resource locations associated with themultiple reference signals includes receiving the radio resource controlsignaling via a non-standalone network or source cell in a handoveroperation.

In a fourth aspect, alone or in combination with one or more of thefirst and third aspects, the multiple reference signals include multiplesynchronization signal blocks.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, each reference signal of the multiple referencesignals is located at a different frequency.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, a first reference signal and a second referencesignal, of the multiple reference signals, are located at a samefrequency, based at least in part on the first reference signal beingcarried on a first beam with a threshold amount of spatial separationfrom a second beam that carries the second reference signal.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, the single reference signal burst includesa burst received over four or fewer symbols.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, process 700 includes measuring themultiple reference signals, and transmitting a report of measurements ofthe multiple reference signals.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, transmitting the report includes performing aportion of a base station beam selection procedure.

In a tenth aspect, alone or in combination with one or more of the firstthrough ninth aspects, process 700 includes receiving multipleadditional reference signals during an additional single referencesignal burst using frequency division multiplexing.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, the multiple reference signals include atleast one reference signal that is not included in the multipleadditional reference signals, the multiple additional reference signalsinclude at least one reference signal that is not included in themultiple reference signals.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the UE receives the multiple referencesignals during the single reference signal burst based at least in parton spatial separation of the multiple reference signals, and the UEreceives the multiple additional reference signals during the additionalsingle reference signal burst based at least in part on spatialseparation of the multiple additional reference signals.

Although FIG. 7 shows example blocks of process 700, in some aspects,process 700 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 7.Additionally, or alternatively, two or more of the blocks of process 700may be performed in parallel.

FIG. 8 is a diagram illustrating an example process 800 performed, forexample, by a base station, in accordance with the present disclosure.Example process 800 is an example where the base station (e.g., basestation 110) performs operations associated with frequency divisionmultiplexed reference signals for multiple beams.

As shown in FIG. 8, in some aspects, process 800 may include receiving,from a UE, an indication of a capability to receive multiple referencesignals via multiple beams using frequency division multiplexing duringa single reference signal burst (block 810). For example, the basestation (e.g., using reception component 1002, depicted in FIG. 10) mayreceive, from a UE, an indication of a capability to receive multiplereference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst, as described above.

As further shown in FIG. 8, in some aspects, process 800 may includetransmitting, to the UE, the multiple reference signals during thesingle reference signal burst using frequency division multiplexing(block 820). For example, the base station (e.g., using transmissioncomponent 1004, depicted in FIG. 10) may transmit, to the UE, themultiple reference signals during the single reference signal burstusing frequency division multiplexing, as described above.

Process 800 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, process 800 includes transmitting an indication ofresource locations associated with the multiple reference signals.

In a second aspect, alone or in combination with the first aspect,transmitting the indication of the resource locations associated withthe multiple reference signals includes one or more of transmittingradio resource control signaling that includes the indication of theresource locations associated with the multiple reference signals, ortransmitting configuration information that associates the resourcelocations with cell identifications or synchronization signal blockindexes.

In a third aspect, alone or in combination with one or more of the firstand second aspects, transmitting the radio resource control signalingthat includes the indication of the resource locations associated withthe multiple reference signals comprises: transmitting the radioresource control signaling via a non-standalone network or as part of ahandover operation. In a fourth aspect, alone or in combination with oneor more of the first through third aspects, the multiple referencesignals include multiple synchronization signal blocks.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, each reference signal of the multiple referencesignals is located at a different frequency.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, a first reference signal and a second referencesignal, of the multiple reference signals, are located at a samefrequency, based at least in part on the first reference signal beingcarried on a first beam with a threshold amount of spatial separationfrom a second beam that carries the second reference signal.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, the single reference signal burst includesa burst received over four or fewer symbols.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, process 800 includes receiving a reportof measurements of the multiple reference signals.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, process 800 includes selecting a base stationbeam based at least in part on the report of measurements.

In a tenth aspect, or in combination with one or more of the firstthrough ninth aspects, process 800 includes transmitting multipleadditional reference signals during an additional single referencesignal burst using frequency division multiplexing.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, the multiple reference signals include atleast one reference signal that is not included in the multipleadditional reference signals, or the multiple additional referencesignals include at least one reference signal that is not included inthe multiple reference signals.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the base station transmits the multiplereference signals during the single reference signal burst based atleast in part on spatial separation of the multiple reference signalsand the base station transmits the multiple additional reference signalsduring the additional single reference signal burst based at least inpart on spatial separation of the multiple additional reference signals.

Although FIG. 8 shows example blocks of process 800, in some aspects,process 800 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 8.Additionally, or alternatively, two or more of the blocks of process 800may be performed in parallel.

FIG. 9 is a block diagram of an example apparatus 900 for wirelesscommunication. The apparatus 900 may be a UE, or a UE may include theapparatus 900. In some aspects, the apparatus 900 includes a receptioncomponent 902 and a transmission component 904, which may be incommunication with one another (for example, via one or more busesand/or one or more other components). As shown, the apparatus 900 maycommunicate with another apparatus 906 (such as a UE, a base station, oranother wireless communication device) using the reception component 902and the transmission component 904.

In some aspects, the apparatus 900 may be configured to perform one ormore operations described herein in connection with FIG. 5 or 6.Additionally, or alternatively, the apparatus 900 may be configured toperform one or more processes described herein, such as process 700 ofFIG. 7. In some aspects, the apparatus 900 and/or one or more componentsshown in FIG. 9 may include one or more components of the UE describedabove in connection with FIG. 2. Additionally, or alternatively, one ormore components shown in FIG. 9 may be implemented within one or morecomponents described above in connection with FIG. 2. Additionally, oralternatively, one or more components of the set of components may beimplemented at least in part as software stored in a memory. Forexample, a component (or a portion of a component) may be implemented asinstructions or code stored in a non-transitory computer-readable mediumand executable by a controller or a processor to perform the functionsor operations of the component.

The reception component 902 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 906. The reception component 902may provide received communications to one or more other components ofthe apparatus 900. In some aspects, the reception component 902 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus906. In some aspects, the reception component 902 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the UEdescribed above in connection with FIG. 2.

The transmission component 904 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 906. In some aspects, one or moreother components of the apparatus 906 may generate communications andmay provide the generated communications to the transmission component904 for transmission to the apparatus 906. In some aspects, thetransmission component 904 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 906. In some aspects, the transmission component 904may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the UE described above in connection with FIG.2. In some aspects, the transmission component 904 may be collocatedwith the reception component 902 in a transceiver.

The transmission component 904 may transmit an indication of acapability to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst. The reception component 902 may receive the multiple referencesignals during the single reference signal burst using frequencydivision multiplexing.

The reception component 902 may receive an indication of resourcelocations associated with the multiple reference signals.

The reception component 902 may measure the multiple reference signals.

The transmission component 904 may transmit a report of measurements ofthe multiple reference signals.

The number and arrangement of components shown in FIG. 9 are provided asan example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 9. Furthermore, two or more components shown inFIG. 9 may be implemented within a single component, or a singlecomponent shown in FIG. 9 may be implemented as multiple, distributedcomponents. Additionally, or alternatively, a set of (one or more)components shown in FIG. 9 may perform one or more functions describedas being performed by another set of components shown in FIG. 9.

FIG. 10 is a block diagram of an example apparatus 1000 for wirelesscommunication. The apparatus 1000 may be a base station, or a basestation may include the apparatus 1000. In some aspects, the apparatus1000 includes a reception component 1002 and a transmission component1004, which may be in communication with one another (for example, viaone or more buses and/or one or more other components). As shown, theapparatus 1000 may communicate with another apparatus 1006 (such as aUE, a base station, or another wireless communication device) using thereception component 1002 and the transmission component 1004. As shown,the apparatus 1000 may include a selection component 1008.

In some aspects, the apparatus 1000 may be configured to perform one ormore operations described herein in connection with FIG. 5 or 6.Additionally, or alternatively, the apparatus 1000 may be configured toperform one or more processes described herein, such as process 800 ofFIG. 8. In some aspects, the apparatus 1000 and/or one or morecomponents shown in FIG. 10 may include one or more components of thebase station described above in connection with FIG. 2. Additionally, oralternatively, one or more components shown in FIG. 10 may beimplemented within one or more components described above in connectionwith FIG. 2. Additionally, or alternatively, one or more components ofthe set of components may be implemented at least in part as softwarestored in a memory. For example, a component (or a portion of acomponent) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the component.

The reception component 1002 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 1006. The reception component1002 may provide received communications to one or more other componentsof the apparatus 1000. In some aspects, the reception component 1002 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus1006. In some aspects, the reception component 1002 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the basestation described above in connection with FIG. 2.

The transmission component 1004 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 1006. In some aspects, one or moreother components of the apparatus 1006 may generate communications andmay provide the generated communications to the transmission component1004 for transmission to the apparatus 1006. In some aspects, thetransmission component 1004 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 1006. In some aspects, the transmission component 1004may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the base station described above in connectionwith FIG. 2. In some aspects, the transmission component 1004 may becollocated with the reception component 1002 in a transceiver.

The reception component 1002 may receive, from a UE, an indication of acapability to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst. The transmission component 1004 may transmit, to the UE, themultiple reference signals during the single reference signal burstusing frequency division multiplexing.

The transmission component 1004 may transmit an indication of resourcelocations associated with the multiple reference signals.

The reception component 1002 may receive a report of measurements of themultiple reference signals.

The selection component 1008 may select a base station beam based atleast in part on the report of measurements. In some aspects, theselection component 1008 may include one or more antennas, ademodulator, a MIMO detector, a receive processor, a modulator, atransmit MIMO processor, a transmit processor, a controller/processor, amemory, or a combination thereof, of the base station described above inconnection with FIG. 2.

The number and arrangement of components shown in FIG. 10 are providedas an example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 10. Furthermore, two or more components shownin FIG. 10 may be implemented within a single component, or a singlecomponent shown in FIG. 10 may be implemented as multiple, distributedcomponents. Additionally, or alternatively, a set of (one or more)components shown in FIG. 10 may perform one or more functions describedas being performed by another set of components shown in FIG. 10. Thefollowing provides an overview of some Aspects of the presentdisclosure:

Aspect 1: A method of wireless communication performed by a userequipment (UE), comprising: transmitting an indication of a capabilityto receive multiple reference signals via multiple beams using frequencydivision multiplexing during a single reference signal burst; andreceiving the multiple reference signals during the single referencesignal burst using frequency division multiplexing.

Aspect 2: The method of Aspect 1, further comprising: receiving anindication of resource locations associated with the multiple referencesignals.

Aspect 3: The method of Aspect 2, wherein receiving the indication ofthe resource locations associated with the multiple reference signalscomprises one or more of: receiving radio resource control signalingthat includes the indication of the resource locations associated withthe multiple reference signals; or receiving configuration informationthat associates the resource locations with cell identifications orsynchronization signal block indexes.

Aspect 4: The method of Aspect 3, wherein receiving the radio resourcecontrol signaling that includes the indication of the resource locationsassociated with the multiple reference signals comprises: receiving theradio resource control signaling via a non-standalone network or sourcecell in a handover operation.

Aspect 5: The method of any of Aspects 1-4, wherein the multiplereference signals comprise multiple synchronization signal blocks.

Aspect 6: The method of any of Aspects 1-5, wherein each referencesignal of the multiple reference signals is located at a differentfrequency.

Aspect 7: The method of any of Aspects 1-6, wherein a first referencesignal and a second reference signal, of the multiple reference signals,are located at a same frequency, based at least in part on the firstreference signal being carried on a first beam with a threshold amountof spatial separation from a second beam that carries the secondreference signal.

Aspect 8: The method of any of Aspects 1-7, wherein the single referencesignal burst comprises a burst received over four or fewer symbols.

Aspect 9: The method of any of Aspects 1-8, further comprising:measuring the multiple reference signals; and transmitting a report ofmeasurements of the multiple reference signals.

Aspect 10: The method of Aspect 9, wherein transmitting the reportcomprises: performing a portion of a base station beam selectionprocedure.

Aspect 11: The method of any of Aspects 1-10, further comprising:receiving multiple additional reference signals during an additionalsingle reference signal burst using frequency division multiplexing.

Aspect 12: The method of Aspect 11, wherein the one or more of: themultiple reference signals include at least one reference signal that isnot included in the multiple additional reference signals, or themultiple additional reference signals include at least one referencesignal that is not included in the multiple reference signals.

Aspect 13: The method of Aspect 11, wherein the UE receives the multiplereference signals during the single reference signal burst based atleast in part on spatial separation of the multiple reference signals,and wherein the UE receives the multiple additional reference signalsduring the additional single reference signal burst based at least inpart on spatial separation of the multiple additional reference signals.

Aspect 14: A method of wireless communication performed by a basestation, comprising: receiving, from a user equipment (UE), anindication of a capability to receive multiple reference signals viamultiple beams using frequency division multiplexing during a singlereference signal burst; and transmitting, to the UE, the multiplereference signals during the single reference signal burst usingfrequency division multiplexing.

Aspect 15: The method of Aspect 14, further comprising: transmitting anindication of resource locations associated with the multiple referencesignals.

Aspect 16: The method of Aspect 15, wherein transmitting the indicationof the resource locations associated with the multiple reference signalscomprises one or more of: transmitting radio resource control signalingthat includes the indication of the resource locations associated withthe multiple reference signals; or transmitting configurationinformation that associates the resource locations with cellidentifications or synchronization signal block indexes.

Aspect 17: The method of Aspect 16, wherein transmitting the radioresource control signaling that includes the indication of the resourcelocations associated with the multiple reference signals comprises:transmitting the radio resource control signaling via a non-standalonenetwork or as part of a handover operation.

Aspect 18: The method of any of Aspects 14-17, wherein the multiplereference signals comprise multiple synchronization signal blocks.

Aspect 19: The method of any of Aspects 14-18, wherein each referencesignal of the multiple reference signals is located at a differentfrequency.

Aspect 20: The method of any of Aspects 14-19, wherein a first referencesignal and a second reference signal, of the multiple reference signals,are located at a same frequency, based at least in part on the firstreference signal being carried on a first beam with a threshold amountof spatial separation from a second beam that carries the secondreference signal.

Aspect 21: The method of any of Aspects 14-20, wherein the singlereference signal burst comprises a burst received over four or fewersymbols.

Aspect 22: The method of any of Aspects 14-21, further comprising:receiving a report of measurements of the multiple reference signals.

Aspect 23: The method of Aspect 22, further comprising: selecting a basestation beam based at least in part on the report of measurements.

Aspect 24: The method of any of Aspects 14-23, further comprising:transmitting multiple additional reference signals during an additionalsingle reference signal burst using frequency division multiplexing.

Aspect 25: The method of Aspect 24, wherein the one or more of: themultiple reference signals include at least one reference signal that isnot included in the multiple additional reference signals, or themultiple additional reference signals include at least one referencesignal that is not included in the multiple reference signals.

Aspect 26: The method of Aspect 24, wherein the base station transmitsthe multiple reference signals during the single reference signal burstbased at least in part on spatial separation of the multiple referencesignals, and wherein the base station transmits the multiple additionalreference signals during the additional single reference signal burstbased at least in part on spatial separation of the multiple additionalreference signals.

Aspect 27: An apparatus for wireless communication at a device,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform the method of one or more of Aspects1-26.

Aspect 28: A device for wireless communication, comprising a memory andone or more processors coupled to the memory, the one or more processorsconfigured to perform the method of one or more of Aspects 1-26.

Aspect 29: An apparatus for wireless communication, comprising at leastone means for performing the method of one or more of Aspects 1-26.

Aspect 30: A non-transitory computer-readable medium storing code forwireless communication, the code comprising instructions executable by aprocessor to perform the method of one or more of Aspects 1-26.

Aspect 31: A non-transitory computer-readable medium storing a set ofinstructions for wireless communication, the set of instructionscomprising one or more instructions that, when executed by one or moreprocessors of a device, cause the device to perform the method of one ormore of Aspects 1-26.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseforms disclosed. Modifications and variations may be made in light ofthe above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware and/or a combination of hardware and software. “Software”shall be construed broadly to mean instructions, instruction sets, code,code segments, program code, programs, subprograms, software modules,applications, software applications, software packages, routines,subroutines, objects, executables, threads of execution, procedures,and/or functions, among other examples, whether referred to as software,firmware, middleware, microcode, hardware description language, orotherwise. As used herein, a processor is implemented in hardware and/ora combination of hardware and software. It will be apparent that systemsand/or methods described herein may be implemented in different forms ofhardware and/or a combination of hardware and software. The actualspecialized control hardware or software code used to implement thesesystems and/or methods is not limiting of the aspects. Thus, theoperation and behavior of the systems and/or methods were describedherein without reference to specific software code—it being understoodthat software and hardware can be designed to implement the systemsand/or methods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, or thelike.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. As used herein, a phrase referringto “at least one of” a list of items refers to any combination of thoseitems, including single members. As an example, “at least one of: a, b,or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well asany combination with multiples of the same element (e.g., a-a, a-a-a,a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or anyother ordering of a, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems and may be used interchangeably with “one or more.” Further, asused herein, the article “the” is intended to include one or more itemsreferenced in connection with the article “the” and may be usedinterchangeably with “the one or more.” Furthermore, as used herein, theterms “set” and “group” are intended to include one or more items (e.g.,related items, unrelated items, or a combination of related andunrelated items), and may be used interchangeably with “one or more.”Where only one item is intended, the phrase “only one” or similarlanguage is used. Also, as used herein, the terms “has,” “have,”“having,” or the like are intended to be open-ended terms. Further, thephrase “based on” is intended to mean “based, at least in part, on”unless explicitly stated otherwise. Also, as used herein, the term “or”is intended to be inclusive when used in a series and may be usedinterchangeably with “and/or,” unless explicitly stated otherwise (e.g.,if used in combination with “either” or “only one of”).

What is claimed is:
 1. A user equipment (UE) for wireless communication,comprising: a memory; and one or more processors, coupled to the memory,configured to: transmit an indication of a capability to receivemultiple reference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst; and receive themultiple reference signals during the single reference signal burstusing frequency division multiplexing.
 2. The UE of claim 1, wherein theone or more processors are further configured to: receive an indicationof resource locations associated with the multiple reference signals. 3.The UE of claim 2, wherein the one or more processors, to receive theindication of the resource locations associated with the multiplereference signals, are configured to: receive radio resource controlsignaling that includes the indication of the resource locationsassociated with the multiple reference signals; or receive configurationinformation that associates the resource locations with cellidentifications or synchronization signal block indexes.
 4. The UE ofclaim 3, wherein the one or more processors, to receive the radioresource control signaling that, are configured to the indication of theresource locations associated with the multiple reference signalscomprises: receive the radio resource control signaling via anon-standalone network or source cell in a handover operation.
 5. The UEof claim 1, wherein the multiple reference signals comprise multiplesynchronization signal blocks.
 6. The UE of claim 1, wherein eachreference signal of the multiple reference signals is located at adifferent frequency.
 7. The UE of claim 1, wherein a first referencesignal and a second reference signal, of the multiple reference signals,are located at a same frequency, based at least in part on the firstreference signal being carried on a first beam with a threshold amountof spatial separation from a second beam that carries the secondreference signal.
 8. The UE of claim 1, wherein the single referencesignal burst comprises a burst received over four or fewer symbols. 9.The UE of claim 1, wherein the one or more processors are furtherconfigured to: measure the multiple reference signals; and transmit areport of measurements of the multiple reference signals.
 10. The UE ofclaim 9, wherein the one or more processors, to transmit the report, areconfigured to: perform a portion of a base station beam selectionprocedure.
 11. The UE of claim 1, wherein the one or more processors arefurther configured to: receive multiple additional reference signalsduring an additional single reference signal burst using frequencydivision multiplexing.
 12. The UE of claim 11, wherein the one or moreof: the multiple reference signals include at least one reference signalthat is not included in the multiple additional reference signals, orthe multiple additional reference signals include at least one referencesignal that is not included in the multiple reference signals.
 13. TheUE of claim 11, wherein the UE receives the multiple reference signalsduring the single reference signal burst based at least in part onspatial separation of the multiple reference signals, and wherein the UEreceives the multiple additional reference signals during the additionalsingle reference signal burst based at least in part on spatialseparation of the multiple additional reference signals.
 14. A basestation for wireless communication, comprising: a memory; and one ormore processors, coupled to the memory, configured to: receive, from auser equipment (UE), an indication of a capability to receive multiplereference signals via multiple beams using frequency divisionmultiplexing during a single reference signal burst; and transmit, tothe UE, the multiple reference signals during the single referencesignal burst using frequency division multiplexing.
 15. The base stationof claim 14, wherein the one or more processors are further configuredto: transmit an indication of resource locations associated with themultiple reference signals.
 16. The base station of claim 15, whereinthe one or more processors, to transmit the indication of the resourcelocations associated with the multiple reference signals, are configuredto: transmit radio resource control signaling that includes theindication of the resource locations associated with the multiplereference signals; or transmit configuration information that associatesthe resource locations with cell identifications or synchronizationsignal block indexes.
 17. The base station of claim 16, wherein the oneor more processors, to transmit the radio resource control signalingthat, are configured to the indication of the resource locationsassociated with the multiple reference signals comprises: transmit theradio resource control signaling via a non-standalone network or as partof a handover operation.
 18. The base station of claim 14, wherein themultiple reference signals comprise multiple synchronization signalblocks.
 19. The base station of claim 14, wherein each reference signalof the multiple reference signals is located at a different frequency.20. The base station of claim 14, wherein a first reference signal and asecond reference signal, of the multiple reference signals, are locatedat a same frequency, based at least in part on the first referencesignal being carried on a first beam with a threshold amount of spatialseparation from a second beam that carries the second reference signal.21. The base station of claim 14, wherein the single reference signalburst comprises a burst received over four or fewer symbols.
 22. Thebase station of claim 14, wherein the one or more processors are furtherconfigured to: receive a report of measurements of the multiplereference signals.
 23. The base station of claim 22, wherein the one ormore processors are further configured to: select a base station beambased at least in part on the report of measurements.
 24. The basestation of claim 14, wherein the one or more processors are furtherconfigured to: transmit multiple additional reference signals during anadditional single reference signal burst using frequency divisionmultiplexing.
 25. The base station of claim 24, wherein the one or moreof: the multiple reference signals include at least one reference signalthat is not included in the multiple additional reference signals, orthe multiple additional reference signals include at least one referencesignal that is not included in the multiple reference signals.
 26. Thebase station of claim 24, wherein the base station transmits themultiple reference signals during the single reference signal burstbased at least in part on spatial separation of the multiple referencesignals, and wherein the base station transmits the multiple additionalreference signals during the additional single reference signal burstbased at least in part on spatial separation of the multiple additionalreference signals.
 27. A method of wireless communication performed by auser equipment (UE), comprising: transmitting an indication of acapability to receive multiple reference signals via multiple beamsusing frequency division multiplexing during a single reference signalburst; and receiving the multiple reference signals during the singlereference signal burst using frequency division multiplexing.
 28. Themethod of claim 27, wherein each reference signal of the multiplereference signals is located at a different frequency.
 29. A method ofwireless communication performed by a base station, comprising:receiving, from a user equipment (UE), an indication of a capability toreceive multiple reference signals via multiple beams using frequencydivision multiplexing during a single reference signal burst; andtransmitting, to the UE, the multiple reference signals during thesingle reference signal burst using frequency division multiplexing. 30.The method of claim 29, wherein each reference signal of the multiplereference signals is located at a different frequency.